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155045124 = 223313110431
BaseRepresentation
bin10010011110111…
…00110100000100
3101210202002221000
421033130310010
5304142420444
623215053300
73561601413
oct1117346404
9353662830
10155045124
117a578773
1243b11230
13261773a0
141683d47a
15d929469
hex93dcd04

155045124 has 48 divisors (see below), whose sum is σ = 432893440. Its totient is φ = 47705760.

The previous prime is 155045123. The next prime is 155045141. The reversal of 155045124 is 421540551.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (155045123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53812 + ... + 56619.

Almost surely, 2155045124 is an apocalyptic number.

It is an amenable number.

155045124 is an abundant number, since it is smaller than the sum of its proper divisors (277848316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155045124 is a wasteful number, since it uses less digits than its factorization.

155045124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110457 (or 110449 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 155045124 is about 12451.7116895630. The cubic root of 155045124 is about 537.2206577336.

Adding to 155045124 its reverse (421540551), we get a palindrome (576585675).

The spelling of 155045124 in words is "one hundred fifty-five million, forty-five thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 12 13 18 26 27 36 39 52 54 78 108 117 156 234 351 468 702 1404 110431 220862 331293 441724 662586 993879 1325172 1435603 1987758 2871206 2981637 3975516 4306809 5742412 5963274 8613618 11926548 12920427 17227236 25840854 38761281 51681708 77522562 155045124